Research Article

[Retracted] Association between the Platelet-Derived Growth Factor/Platelet-Derived Growth Factor Receptor System and Risk of Rheumatoid Arthritis: A Systematic Review and Meta-Analysis

Figure 1

PRISMA flow diagram of comprehensive literature search and details of selected eligible studies for inclusion in PDGF/PDGFR system expression meta-analysis. The PRISMA Statement. PLoS Med 6(6): e1000097. doi:10.1371/journal.pmed1000097